This clip from the full footage unearthed from the LoopyLoops vault is a demonstration of a disposable adult diaper. This would have been revolutionary for the time.
First, we meet university undergraduate Gretchen. You've seen her stuffed before, but never into a diaper! Wearing nothing but the diaper (and a beret for style), Gretchen helps demonstrate various features of the new device.
As shown in the video, it's so durable it can resist repeated attempts by a huge, throbbing cock rubbing against the soft material as it tries to penetrate through. This would be beneficial to the wearer for various reasons.
In clip two, you'll see and hear Gretchen filling the diaper up.
Dollface and Zelda love modelling their diapers, too.
Note: The preview is scaled down resolution/quality and shows only a fraction of the final content.